12121101020022 has 32 divisors (see below), whose sum is σ = 24337706072064. Its totient is φ = 4024467568800.

The previous prime is 12121101020003. The next prime is 12121101020059. The reversal of 12121101020022 is 22002010112121.

It is a junction number, because it is equal to n+sod(n) for n = 12121101019983 and 12121101020010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472872 + ... + 4946292.

It is an arithmetic number, because the mean of its divisors is an integer number (760553314752).

Almost surely, 2^{12121101020022} is an apocalyptic number.

12121101020022 is an abundant number, since it is smaller than the sum of its proper divisors (12216605052042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12121101020022 is a wasteful number, since it uses less digits than its factorization.

12121101020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475204.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12121101020022 its reverse (22002010112121), we get a palindrome (34123111132143).

The spelling of 12121101020022 in words is "twelve trillion, one hundred twenty-one billion, one hundred one million, twenty thousand, twenty-two".